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media: ir_toy: prevent device from hanging during transmit

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[ Upstream commit 4114978dcd24e72415276bba60ff4ff355970bbc ]

If the IR Toy is receiving IR while a transmit is done, it may end up
hanging. We can prevent this from happening by re-entering sample mode
just before issuing the transmit command.

Link: https://github.com/bengtmartensson/HarcHardware/discussions/25

Cc: stable@vger.kernel.org
[mchehab: renamed: s/STATE_RESET/STATE_COMMAND_NO_RESP/ ]
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Sean Young
2021-09-14 16:57:46 +02:00
committed by Greg Kroah-Hartman
parent e1716b0ff9
commit a4ac45aff8
1 changed files with 1 additions and 1 deletions
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2
drivers/media/rc/ir_toy.c
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@@ -310,7 +310,7 @@ static int irtoy_tx(struct rc_dev *rc, uint *txbuf, uint count)
buf[i] = cpu_to_be16(v);
}
buf[count] = cpu_to_be16(0xffff);
buf[count] = 0xffff;
irtoy->tx_buf = buf;
irtoy->tx_len = size;